Structure 22200000816482 · Tarrant County, TX

Sh121 SB To Ih20wb over SH 121 SB On Ramp

Carries Sh121 SB To Ih20wb over SH 121 SB On Ramp, SH 121 SB @ Arbor Ramp.

Overall conditionGood

Set by its lowest-rated component: Deck and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT345 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

345 ft end to end, longest span 125 ft: about 5 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built201313 years old
Length345.1 ft105.2 m
Daily traffic—reported figure implausible
Last inspectedJune 2022every 48 months

Location

StateTexas
CountyTarrant
LocationSH 121 SB @ Arbor Ramp
CarriesSh121 SB To Ih20wb
CrossesSH 121 SB On Ramp
Coordinates32.68552, -97.40615

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length345.1 ft (105.2 m)
Max Span125.0 ft (38.1 m)
Deck Width27.9 ft (8.5 m)
Deck Area894.2 sq m
Main Spans3
Year Built2013

Traffic

Avg Daily Traffic84,000 (2013)
That is about 84,000 vehicles per lane per day — beyond what any U.S. road carries (the busiest freeways run about 25,000–30,000). It is almost certainly a data-entry error in the National Bridge Inventory, so we leave this bridge out of traffic rankings.
Truck Traffic6%
Lanes On Bridge1
Lanes Under Bridge1

Inspection & Ownership

Last InspectionJune 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number022200000816482

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

Nearby Bridges